Where to Find the Strength Coefficient (K) for AA6082?

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SUMMARY

The strength coefficient (K) for AA6082 aluminum alloy is essential for accurate metal sheet forming simulations using the power law model, represented as sigma = K*(strain)^n. The value of K can vary based on factors such as heat treatment (T4 or T6), temperature, and deformation rate. A recommended resource for obtaining K values is the paper titled "Investigation of deformation and failure features in hot stamping of AA6082," which provides experimental data and modeling insights. Understanding these variables is crucial for effective simulation outcomes.

PREREQUISITES
  • Familiarity with power law material models in metal forming
  • Understanding of heat treatment processes for aluminum alloys
  • Knowledge of strain hardening indices and their significance
  • Experience with simulation tools for metal sheet forming
NEXT STEPS
  • Research the paper "Investigation of deformation and failure features in hot stamping of AA6082" for empirical data on K values
  • Explore the effects of heat treatment on the mechanical properties of AA6082
  • Study the influence of temperature and deformation rate on material behavior
  • Learn about advanced simulation techniques for metal forming processes
USEFUL FOR

Engineers and researchers involved in metal forming simulations, materials scientists studying aluminum alloys, and professionals optimizing the performance of AA6082 in manufacturing processes.

zogru11
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Hi! Iam doing metal sheet forming simulations and I want to find a material for AA6082 and I wanted to use a power law description of the form sigma = K*(strain)^n

where K is the strength coefficient and n is the strain hardening index. But I can not find the value for K. Anyone know any table where I can find it or how to calculate it?
 
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zogru11 said:
Hi! Iam doing metal sheet forming simulations and I want to find a material for AA6082 and I wanted to use a power law description of the form sigma = K*(strain)^n

where K is the strength coefficient and n is the strain hardening index. But I can not find the value for K. Anyone know any table where I can find it or how to calculate it?
AA6082 - T4 or T6? Hot or cold stamping?

Maybe this paper - Investigation of deformation and failure features in hot stamping of AA6082: Experimentation and modelling
http://www.citeulike.org/article/9628320

Heat treatment/temper (really grain size and dislocation density), temperature and deformation rate will have an effect.
 

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